J-PLUS : Uncovering a large population of extreme [OIII] emitters in the local Universe

Lumbreras-Calle, A. and López-Sanjuan, C. and Sobral, D. and Fernández-Ontiveros, J. A. and Vílchez, J. M. and Hernán-Caballero, A. and Akhlaghi, M. and Díaz-García, L. A. and Alcaniz, J. and Angulo, R. E. and Cenarro, A. J. and Cristóbal-Hornillos, D. and Dupke, R. A. and Ederoclite, A. and Hernández-Monteagudo, C. and Marín-Franch, A. and Moles, M. and Jr, L. Sodré and Ramió, H. Vázquez and Varela, J. (2022) J-PLUS : Uncovering a large population of extreme [OIII] emitters in the local Universe. Astronomy and Astrophysics, 668: A60. ISSN 1432-0746

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Abstract

Over the past decades, several studies have discovered a population of galaxies undergoing very strong star formation events, called extreme emission line galaxies (EELGs). In this work, we exploit the capabilities of the Javalambre Photometric Local Universe Survey (J-PLUS), a wide field multifilter survey, with 2000 square degrees observed. We use it to identify EELGs at low redshift by their [OIII]5007 emission line. We intend to provide with a more complete, deep, and less biased sample of local EELGs. We select objects with an excess of flux in the J-PLUS mediumband $J0515$ filter, which covers the [OIII] line at z$